A/N: I was at work, and I had this song in my head. This is the end result. Takes place a few months after X2. Enjoy!

Song: In Your Blood by Papa Roach

In Your Blood

Marie sits alone in her room, at her desk, writing a letter to John. It had been over a few months since she last saw him, heard from him. She didn't expect him to reach out but thought she would have heard something on the news about a mysterious blaze engulfing a facility. Hell, for all she knew John could have been dead already. And in a way he is . . . well, to her anyway.

I will forgive but I won't forget
I hope you know you've lost my respect

John, I wanted to tell you that I forgive you; whether or not you care. To be honest, when I found out you left with Magneto, it surprised me. You're a hard book to read. Maybe that's because you never show an ounce of emotion.

You better watch out
If you don't know what's going on around you
You better think twice
Before you fry off the handle and lose it
You better join us
Before you get lost in the shuffle
You better rise against
The demons that are gonna try and hold you down

Magneto doesn't care about you. He just wants to use you to help in his 'cause'. He won't care if you die for it. Ask yourself: 'Is it really worth dying over?'

Does it run in your blood to betray the ones you love?
Does it run in your blood to betray the ones you love?

So how does it feel to be a traitor? I bet you're laughing at that question and it just proves I'm right about you. You don't care about anyone. You might be wondering if I cared about you . . . I did, but that's gone now. Just remember, when we cross paths and we will . . . I won't hesitate to bring you down.

Cause I'm not a pawn for you to play in your fucking game
I've got dignity and I dream that I want to change
The pressure, your troubled and you let me down
I'm not deaf and all I hear is your empty promises

Magneto is going to use you like a pawn in chess. They protect the king and queen, and they are usually the first pieces to be wiped out from the game.

Does it run in your blood to betray the ones you love?
Does it run in your blood to betray the ones you love?

We all know you like playing with fire, but do you respect it? I don't think you do.

I will forgive but I won't forget
And I hope you know you've lost my respect

You're working with a man that tried to kill me for his cause. You, John Allerdyce, betrayed me. I will forgive, but I won't forget!

Does it run in your blood to betray the ones you love?
Does it run in your blood to betray the ones you love?

So tell me. How does it feel, Pyro?

A/N: Will John read the letter? We will never know…unless I get enough reviews that tell me to update to write John's reaction/reply. I'll also make the second chapter longer.